3. Single Isolation / Multiple Access:
Application : Machine which has more than one access point, Electrostatic Precipitators.
Operating Sequence
- 3.1 Power ON, Key A trapped in Main source of supply, access Keys B,C & D trapped in Key Exchange / guards locked closed.
- 3.2 Power OFF, Key A free, Access Keys B,C & D trapped in key Exchange / Guards locked closed.
- 3.3 Power OFF / Control Key A trapped in Key Exchange access Keys B, C & D / Guards locked closed.
- 3.4 Power OFF / Control Key A trapped in Key Exchange Guards open, access Keys B, C & D trapped.
RECOMMENDED LOCK TYPES :
ILE, ILD/ILH – 100,ILS – **, ILG-100
4. Single Isolation / Interactive Access:
Application : Machine where there is a danger of personnel being trapped inside the machine.
Operating Sequence
- 4.1 Power ON, Key A trapped in Main source of supply Guard locked closed, personnel Key B trapped.
- 4.2 Power OFF, Key A free, Guard locked closed, personnel Key B trapped
- 4.3 Power OFF / Key A trapped, guard released, personnel Key B trapped
- 4.4 Power OFF / Key a trapped, guard open, personnel key B free
RECOMMENDED LOCK TYPES : ILE, ILH – 200, ILG – 200